Material for gravure recording by means of coherent electromagnetic radiation and printing plate therewith
US6214521A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Aug 24, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/114
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A material for gravure recording by means of coherent electromagnetic radiation for letterpress printing, consisting of a substrate and a crosslinkable layer, with or without a release layer and/or cover sheet, the layer containing at least one ethylenically unsaturated compound, a polymerization initiator and at least one polymeric binder which consists of polyvinyl alcohol and/or at least one copolymer having a substantial proportion of the structural unit ##STR1## and containing a filler having a ceiling temperature of less than 800K, in particular less than 600K, e.g. polystyrene, polymethyl methacrylate, poly(ethylene)ketone, polyoxymethylene or poly(.alpha.-methylstyrene), in particular having a spherical or roughly spherical form with a maximum dimension of about 5-10 .mu.m. The material is very suitable for laser-engravable letterpress printing plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.